Greetings!
I have Ubuntu 20.04.3 LTS server fresh install with 8 nodes (2xAMD 7551 processor) and 32GB of memory. I would need to have Huge Pages enabled for all of the nodes, however for some reason I can enable them only for 2 out of 8 nodes.
What I have done so far is:
added "vm.nr_hugepages = 1024" to /etc/sysctl.conf
appended the following to /etc/default/grub AND updated grub "sudo grub-mkconfig -o /boot/grub/grub.cfg" AND rebooted machine
GRUB_CMDLINE_LINUX_DEFAULT="default_hugepagesz=2M hugepagesz=1G hugepages=8"
GRUB_CMDLINE_LINUX="default_hugepagesz=2M hugepagesz=1G hugepages=8"
Code:
cat /proc/meminfo | grep Huge
AnonHugePages: 2048 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 1024
HugePages_Free: 1024
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 10485760 kB
Code:
cat /sys/devices/system/node/node*/meminfo | fgrep Huge
Node 0 AnonHugePages: 0 kB
Node 0 ShmemHugePages: 0 kB
Node 0 FileHugePages: 0 kB
Node 0 HugePages_Total: 0
Node 0 HugePages_Free: 0
Node 0 HugePages_Surp: 0
Node 1 AnonHugePages: 14336 kB
Node 1 ShmemHugePages: 0 kB
Node 1 FileHugePages: 0 kB
Node 1 HugePages_Total: 512
Node 1 HugePages_Free: 512
Node 1 HugePages_Surp: 0
Node 2 AnonHugePages: 0 kB
Node 2 ShmemHugePages: 0 kB
Node 2 FileHugePages: 0 kB
Node 2 HugePages_Total: 0
Node 2 HugePages_Free: 0
Node 2 HugePages_Surp: 0
Node 3 AnonHugePages: 0 kB
Node 3 ShmemHugePages: 0 kB
Node 3 FileHugePages: 0 kB
Node 3 HugePages_Total: 0
Node 3 HugePages_Free: 0
Node 3 HugePages_Surp: 0
Node 4 AnonHugePages: 0 kB
Node 4 ShmemHugePages: 0 kB
Node 4 FileHugePages: 0 kB
Node 4 HugePages_Total: 0
Node 4 HugePages_Free: 0
Node 4 HugePages_Surp: 0
Node 5 AnonHugePages: 2048 kB
Node 5 ShmemHugePages: 0 kB
Node 5 FileHugePages: 0 kB
Node 5 HugePages_Total: 512
Node 5 HugePages_Free: 512
Node 5 HugePages_Surp: 0
Node 6 AnonHugePages: 0 kB
Node 6 ShmemHugePages: 0 kB
Node 6 FileHugePages: 0 kB
Node 6 HugePages_Total: 0
Node 6 HugePages_Free: 0
Node 6 HugePages_Surp: 0
Node 7 AnonHugePages: 0 kB
Node 7 ShmemHugePages: 0 kB
Node 7 FileHugePages: 0 kB
Node 7 HugePages_Total: 0
Node 7 HugePages_Free: 0
Node 7 HugePages_Surp: 0Additionally, what would be reasonable settings for Huge Pages so that maximum of 75% of the memory capacity would be reserved for this? I'm trying to accomplish a working setup with cpuminer-gr-avx2.
Thank you for any help in advance!